PCIe and Graphics

PCI Express Root Port 3

PCI Express Root Port 3 firmware setup page decoded from AMI HII/IFR resources.

Form ID: 0x2783
Records: 10
Parents: TCSS setup menu
Path: Setup / Chipset / System Agent (SA) Configuration / TCSS setup menu / PCI Express Root Port 3

Record 1814

PTM

Firmware Value

Enable/Disable Precision Time Measurement

Form: PCI Express Root Port 3
Opcode: OneOf
Question ID: 0x67d
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xc9
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`1`	Enabled	Standard defaultManufacturing default
`0`	Disabled

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Record 1815

LTR

Firmware Value

PCIE Latency Reporting Enable/Disable

Form: PCI Express Root Port 3
Opcode: OneOf
Question ID: 0x67e
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xcd
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled
`1`	Enabled	Standard defaultManufacturing default

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Record 1816

Snoop Latency Override

Firmware Value

Snoop Latency Override for SA PCIE.

Firmware help text

Snoop Latency Override for SA PCIE. Disabled: Disable override. Manual: Manually enter override values. Auto (default): Maintain default BIOS flow.

Form: PCI Express Root Port 3
Opcode: OneOf
Question ID: 0x67f
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xd1
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled
`1`	Enabled	Standard defaultManufacturing default

Visibility / conditions

{"condition_id": 920, "type": "SuppressIf", "offset": 399009, "expr": ["EqIdVal QuestionId: 0x67E, Value: 0x0"]}

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Record 1817

Snoop Latency Value

Firmware Value

LTR Snoop Latency value of SA PCIE

Form: PCI Express Root Port 3
Opcode: Numeric
Question ID: 0x680
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xdc
Width: 2 byte(s)
Range: 0 to 1023 step 1

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`200`

Visibility / conditions

{"condition_id": 920, "type": "SuppressIf", "offset": 399009, "expr": ["EqIdVal QuestionId: 0x67E, Value: 0x0"]}
{"condition_id": 921, "type": "SuppressIf", "offset": 399050, "expr": ["EqIdVal QuestionId: 0x67F, Value: 0x1", "Not"]}

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Record 1818

Snoop Latency Multiplier

Firmware Value

LTR Snoop Latency Multiplier of SA PCIE

Form: PCI Express Root Port 3
Opcode: OneOf
Question ID: 0x681
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xd5
Width: 1 byte(s)
Range: 0 to 5 step 0

Value	Label	Markers
`0`	1 ns
`1`	32 ns
`2`	1024 ns	Standard defaultManufacturing default
`3`	32768 ns
`4`	1048576 ns
`5`	33554432 ns

Visibility / conditions

{"condition_id": 920, "type": "SuppressIf", "offset": 399009, "expr": ["EqIdVal QuestionId: 0x67E, Value: 0x0"]}
{"condition_id": 921, "type": "SuppressIf", "offset": 399050, "expr": ["EqIdVal QuestionId: 0x67F, Value: 0x1", "Not"]}

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Record 1819

Non Snoop Latency Override

Firmware Value

Non Snoop Latency Override for SA PCIE.

Firmware help text

Non Snoop Latency Override for SA PCIE. Disabled: Disable override. Manual: Manually enter override values. Auto (default): Maintain default BIOS flow.

Form: PCI Express Root Port 3
Opcode: OneOf
Question ID: 0x682
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xe1
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled
`1`	Enabled	Standard defaultManufacturing default

Visibility / conditions

{"condition_id": 920, "type": "SuppressIf", "offset": 399009, "expr": ["EqIdVal QuestionId: 0x67E, Value: 0x0"]}

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Record 1820

Non Snoop Latency Value

Firmware Value

LTR Non Snoop Latency value of PCH PCIE

Form: PCI Express Root Port 3
Opcode: Numeric
Question ID: 0x683
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xec
Width: 2 byte(s)
Range: 0 to 1023 step 1

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`200`

Visibility / conditions

{"condition_id": 920, "type": "SuppressIf", "offset": 399009, "expr": ["EqIdVal QuestionId: 0x67E, Value: 0x0"]}
{"condition_id": 922, "type": "SuppressIf", "offset": 399187, "expr": ["EqIdVal QuestionId: 0x682, Value: 0x1", "Not"]}

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Record 1821

Non Snoop Latency Multiplier

Firmware Value

LTR Non Snoop Latency Multiplier of SA PCIE

Form: PCI Express Root Port 3
Opcode: OneOf
Question ID: 0x684
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xe5
Width: 1 byte(s)
Range: 0 to 5 step 0

Value	Label	Markers
`0`	1 ns
`1`	32 ns
`2`	1024 ns	Standard defaultManufacturing default
`3`	32768 ns
`4`	1048576 ns
`5`	33554432 ns

Visibility / conditions

{"condition_id": 920, "type": "SuppressIf", "offset": 399009, "expr": ["EqIdVal QuestionId: 0x67E, Value: 0x0"]}
{"condition_id": 922, "type": "SuppressIf", "offset": 399187, "expr": ["EqIdVal QuestionId: 0x682, Value: 0x1", "Not"]}

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Record 1822

Force LTR Override

Firmware Value

Force LTR Override for ITBT PCIE.

Firmware help text

Force LTR Override for ITBT PCIE. Disabled: LTR override values will not be forced. Enable: LTR override values will be forced and LTR messages from the device will be ignored.

Form: PCI Express Root Port 3
Opcode: OneOf
Question ID: 0x685
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xf1
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled	Standard default
`1`	Enabled

Visibility / conditions

{"condition_id": 920, "type": "SuppressIf", "offset": 399009, "expr": ["EqIdVal QuestionId: 0x67E, Value: 0x0"]}

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Record 1823

LTR Lock

Firmware Value

PCIE LTR Configuration Lock

Form: PCI Express Root Port 3
Opcode: OneOf
Question ID: 0x686
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xf5
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled	Standard defaultManufacturing default
`1`	Enabled

Visibility / conditions

{"condition_id": 920, "type": "SuppressIf", "offset": 399009, "expr": ["EqIdVal QuestionId: 0x67E, Value: 0x0"]}

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